cpachecker/bin/cpachecker --svcomp24 --heap 10000M --benchmark --option cpa.arg.yamlProofWitness=witness-%s.yml --option witness.yamlexporter.witnessVersions=V2d1,V2 --timelimit 900s --stats --spec sv-benchmarks/c/properties/unreach-call.prp --32 sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i -------------------------------------------------------------------------------- Running CPAchecker with Java heap of size 10000M. Running CPAchecker with default stack size (1024k). Specify a larger value with --stack if needed. Language C detected and set for analysis (CPAMain.detectFrontendLanguageIfNecessary, INFO) Using the following resource limits: CPU-time limit of 900s (ResourceLimitChecker.fromConfiguration, INFO) CPAchecker 3.1-svn-5f8d539e99+ / svcomp24 (OpenJDK 64-Bit Server VM 17.0.9) started (CPAchecker.run, INFO) Parsing CFA from file(s) "sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i" (CPAchecker.parse, INFO) Using heuristics to select analysis (CoreComponentsFactory.createAlgorithm, INFO) The following configuration options were specified but are not used: cpa.callstack.unsupportedFunctions termination.violation.witness cpa.predicate.memoryAllocationsAlwaysSucceed cpa.arg.compressWitness cpa.arg.yamlProofWitness cpa.callstack.skipFunctionPointerRecursion counterexample.export.yaml cpa.composite.aggregateBasicBlocks counterexample.export.graphml counterexample.export.compressWitness cpa.arg.proofWitness witness.yamlexporter.witnessVersions (CPAchecker.printConfigurationWarnings, WARNING) Starting analysis ... (CPAchecker.runAlgorithm, INFO) Performing heuristic ... (SelectionAlgorithm.chooseConfig, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ResourceLimitChecker.fromConfiguration, INFO) Using Restarting Algorithm (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:CoreComponentsFactory.createAlgorithm, INFO) Loading analysis 1 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'limits.time.cpu' has two values '900s' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties': 'limits.time.cpu::required' has two values '900' and '140s'. Using '140s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 140s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-symbolicExecution.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 1 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Warning: Analysis 1 stopped. (The CPU-time limit of 140s has elapsed.) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ShutdownNotifier.shutdownIfNecessary, WARNING) Statistics for algorithm 1 of 7 =============================== Total time for algorithm 1: 140.161s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 8.81 (sum: 185, count: 21, min: 0, max: 11) Number of global variables per state: 0.90 (sum: 19, count: 21, min: 0, max: 1) Number of assumptions: 9 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 20 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.000s Total time for path thresholds: 0.000s SymbolicValueAnalysisPrecisionAdjustment statistics --------------------------------------------------- Symbolic values before refinement: 156 (count: 20, min: 0, max: 9, avg: 7.80) Symbolic values after refinement: 156 (count: 20, min: 0, max: 9, avg: 7.80) ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 ConstraintsCPA statistics ------------------------- Time for solving constraints: 139.926s Time for SMT check: 139.863s Time for resolving definites: 0.003s Cache lookups: 7 Direct cache hits: 1 Direct cache lookup time: 0.001s Number of removed outdated constraints: 0 (count: 6, min: 0, max: 0, avg: 0.00) Time for outdated constraint removal: 0.005s Constraints after refinement in state: 26 (count: 20, min: 0, max: 2, avg: 1.30) Constraints before refinement in state: 26 (count: 20, min: 0, max: 2, avg: 1.30) Time for constraints adjustment: 0.000s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.004s Automaton transfers with branching: 0 Automaton transfer successors: 0.96 (sum: 48, count: 50, min: 0, max: 1) [0 x 2, 1 x 48] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 21 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 20 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 139.970s (Max: 139.970s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.004s Time for transfer relation: 139.965s Time for stop operator: 0.000s Time for adding to reached set: 0.000s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPA algorithm statistics ------------------------ Number of iterations: 21 Max size of waitlist: 2 Average size of waitlist: 1 Number of computed successors: 20 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 139.970s (Max: 139.970s) Time for choose from waitlist: 0.001s Time for precision adjustment: 0.004s Time for transfer relation: 139.965s Time for stop operator: 0.000s Time for adding to reached set: 0.000s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 2 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 2 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Assuming external function sqrt to be a pure function. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Warning: Counterexample found, but feasibility could not be verified (line 39: Unsupported feature (arithmetic function): sqrt(n) (line was originally s = sqrt(n);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExpressionToFormulaVisitor.visit, WARNING) Infeasible counterexample found, but could not remove it from the ARG. Therefore, we cannot prove safety. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, WARNING) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Assuming external function sqrt to be a pure function. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Warning: Counterexample found, but feasibility could not be verified (line 39: Unsupported feature (arithmetic function): sqrt(n) (line was originally s = sqrt(n);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExpressionToFormulaVisitor.visit, WARNING) Another infeasible counterexample found which could not be removed from the ARG. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, INFO) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Assuming external function sqrt to be a pure function. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Warning: Counterexample found, but feasibility could not be verified (line 39: Unsupported feature (arithmetic function): sqrt(n) (line was originally s = sqrt(n);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExpressionToFormulaVisitor.visit, WARNING) Another infeasible counterexample found which could not be removed from the ARG. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, INFO) Error path found, starting counterexample check with CPACHECKER. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheckAlgorithm.checkCounterexample, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:PredicateCPA., INFO) Assuming external function sqrt to be a pure function. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:CounterexampleCheck:PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Warning: Counterexample found, but feasibility could not be verified (line 39: Unsupported feature (arithmetic function): sqrt(n) (line was originally s = sqrt(n);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExpressionToFormulaVisitor.visit, WARNING) Another infeasible counterexample found which could not be removed from the ARG. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-valueAnalysis-Cegar.properties:ExceptionHandlingAlgorithm.handleExceptionWithErrorPath, INFO) Analysis 2 terminated, but result is unsound. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Statistics for algorithm 2 of 7 =============================== Total time for algorithm 2: 0.875s ValueAnalysisCPA statistics --------------------------- Number of variables per state: 0.00 (sum: 0, count: 62, min: 0, max: 0) Number of global variables per state: 0.00 (sum: 0, count: 62, min: 0, max: 0) Number of assumptions: 30 Number of deterministic assumptions: 0 Level of Determinism: 0% ValueAnalysisPrecisionAdjustment statistics ------------------------------------------- Number of abstraction computations: 78 Total time for liveness abstraction: 0.000s Total time for abstraction computation: 0.002s Total time for path thresholds: 0.000s ConstraintsStrengthenOperator statistics ---------------------------------------- Total time for strengthening by ConstraintsCPA: 0.000s Replaced symbolic expressions: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.003s Automaton transfers with branching: 0 Automaton transfer successors: 0.98 (sum: 120, count: 122, min: 0, max: 1) [0 x 2, 1 x 120] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 66 Max size of waitlist: 4 Average size of waitlist: 1 Number of computed successors: 78 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 9 Number of times breaked: 4 Total time for CPA algorithm: 0.031s (Max: 0.012s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.006s Time for transfer relation: 0.018s Time for stop operator: 0.001s Time for adding to reached set: 0.001s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 4 Number of targets found: 4 (count: 4, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.051s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 0 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.000s Number of interpolations: 0 Number of interpolation queries: 0 (count: 0, min: 0, max: 0, avg: 0.00) Size of interpolant: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Extracting infeasible sliced prefixes: 0.000s Selecting infeasible sliced prefixes: 0.000s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 0 Number of failed refinements: 0 Max. size of reached set before ref.: 47 Max. size of reached set after ref.: 0 Avg. size of reached set before ref.: 38.25 Avg. size of reached set after ref.: NaN Total time for CEGAR algorithm: 0.104s Time for refinements: 0.073s Average time for refinement: 0.018s Max time for refinement: 0.030s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 4 Number of infeasible paths: 0 (0%) Time for counterexample checks: 0.722s CPA algorithm statistics ------------------------ Number of iterations: 66 Max size of waitlist: 4 Average size of waitlist: 1 Number of computed successors: 78 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 9 Number of times breaked: 4 Total time for CPA algorithm: 0.031s (Max: 0.012s) Time for choose from waitlist: 0.003s Time for precision adjustment: 0.006s Time for transfer relation: 0.018s Time for stop operator: 0.001s Time for adding to reached set: 0.001s ValueAnalysisRefiner statistics ------------------------------- Number of refinements: 4 Number of targets found: 4 (count: 4, min: 1, max: 1, avg: 1.00) Time for completing refinement: 0.051s Number of root relocations: 0 Number of similar, repeated refinements: 0 Number of unique precision increments: 0 PathExtractor statistics ------------------------ Total number of targets found: 0 ValueAnalysisPathInterpolator statistics ---------------------------------------- Time for interpolation: 0.000s Number of interpolations: 0 Number of interpolation queries: 0 (count: 0, min: 0, max: 0, avg: 0.00) Size of interpolant: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of sliced prefixes: 0 (count: 0, min: 0, max: 0, avg: 0.00) Extracting infeasible sliced prefixes: 0.000s Selecting infeasible sliced prefixes: 0.000s CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 4 Number of successful refinements: 0 Number of failed refinements: 0 Max. size of reached set before ref.: 47 Max. size of reached set after ref.: 0 Avg. size of reached set before ref.: 38.25 Avg. size of reached set after ref.: NaN Total time for CEGAR algorithm: 0.104s Time for refinements: 0.073s Average time for refinement: 0.018s Max time for refinement: 0.030s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 4 Number of infeasible paths: 0 (0%) Time for counterexample checks: 0.722s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 3 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'cpa.composite.aggregateBasicBlocks' has two values 'false' and 'true'. Using 'true'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu' has two values '900s' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties': 'limits.time.cpu::required' has two values '900' and '200s'. Using '200s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 200s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant) and JFactory 1.21. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:PredicateCPARefiner., INFO) Starting analysis 3 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Assuming external function sqrt to be a pure function. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-predicateAnalysis.properties:PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Warning: Analysis 3 not completed. (line 39: Unsupported feature (arithmetic function): sqrt(n) (line was originally s = sqrt(n);)) (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:ExpressionToFormulaVisitor.visit, WARNING) Statistics for algorithm 3 of 7 =============================== Total time for algorithm 3: 0.087s PredicateCPA statistics ----------------------- Number of abstractions: 0 (0% of all post computations) Number of strengthen sat checks: 0 Number of coverage checks: 0 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 0 Avg ABE block size: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of predicates discovered: 0 Time for post operator: 0.008s Time for path formula creation: 0.008s Time for strengthen operator: 0.000s Time for prec operator: 0.000s Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.000s Number of path formula cache hits: 0 (0%) Inside post operator: Inside path formula creation: Time for path formula computation: 0.008s Total number of created targets for pointer analysis: 0 Number of BDD nodes: 202 Size of BDD node table: 524309 Size of BDD node cleanup queue: 0.00 (sum: 0, count: 1, min: 0, max: 0) Time for BDD node cleanup: 0.000s Time for BDD garbage collection: 0.000s (in 0 runs) KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 0.95 (sum: 40, count: 42, min: 0, max: 1) [0 x 2, 1 x 40] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 15 Max size of waitlist: 2 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 13, min: 0, max: 0) CallstackSortedWaitlist: 2.00 (sum: 2, count: 1, min: 2, max: 2) Number of computed successors: 14 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.013s (Max: 0.013s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.012s Time for stop operator: 0.000s Time for adding to reached set: 0.000s Static Predicate Refiner statistics ----------------------------------- PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 0 Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.000s ARG update: 0.000s Length of refined path (in blocks): 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of affected states: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 0, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 0 CPA algorithm statistics ------------------------ Number of iterations: 15 Max size of waitlist: 2 Average size of waitlist: 1 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 13, min: 0, max: 0) CallstackSortedWaitlist: 2.00 (sum: 2, count: 1, min: 2, max: 2) Number of computed successors: 14 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.013s (Max: 0.013s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.000s Time for transfer relation: 0.012s Time for stop operator: 0.000s Time for adding to reached set: 0.000s Static Predicate Refiner statistics ----------------------------------- PredicateCPARefiner statistics ------------------------------ Number of predicate refinements: 0 Predicate-Abstraction Refiner statistics ---------------------------------------- Predicate creation: 0.000s Precision update: 0.000s ARG update: 0.000s Length of refined path (in blocks): 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of affected states: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'true': 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp non-trivial itp: 0 (count: 0, min: 0, max: 0, avg: 0.00) Length (states) of path with itp 'false': 0 (count: 0, min: 0, max: 0, avg: 0.00) Different non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Equal non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0.00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of CEGAR refinements: 0 RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 4 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu' has two values '900s' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties': 'limits.time.cpu::required' has two values '900' and '60s'. Using '60s'. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 60s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-dataFlow.properties:ResourceLimitChecker.fromConfiguration, INFO) Starting analysis 4 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Statistics for algorithm 4 of 7 =============================== Total time for algorithm 4: 2.133s AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.061s Automaton transfers with branching: 0 Automaton transfer successors: 0.95 (sum: 3794, count: 3995, min: 0, max: 1) [0 x 201, 1 x 3794] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 3395 Max size of waitlist: 4 Average size of waitlist: 2 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 1, min: 0, max: 0) Number of computed successors: 3794 Max successors for one state: 2 Number of times merged: 2 Number of times stopped: 400 Number of times breaked: 0 Total time for CPA algorithm: 2.013s (Max: 2.013s) Time for choose from waitlist: 0.014s Time for precision adjustment: 0.036s Time for transfer relation: 1.003s Time for merge operator: 0.746s Time for stop operator: 0.166s Time for adding to reached set: 0.015s CPA algorithm statistics ------------------------ Number of iterations: 3395 Max size of waitlist: 4 Average size of waitlist: 2 ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 1, min: 0, max: 0) Number of computed successors: 3794 Max successors for one state: 2 Number of times merged: 2 Number of times stopped: 400 Number of times breaked: 0 Total time for CPA algorithm: 2.013s (Max: 2.013s) Time for choose from waitlist: 0.014s Time for precision adjustment: 0.036s Time for transfer relation: 1.003s Time for merge operator: 0.746s Time for stop operator: 0.166s Time for adding to reached set: 0.015s RestartAlgorithm switches to the next configuration... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Loading analysis 5 from file /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Mismatch of configuration options when loading from '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties': 'limits.time.cpu::required' has two values '900' and ''. Using ''. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:NestingAlgorithm.checkConfigs, INFO) Using the following resource limits: CPU-time limit of 900s (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:ResourceLimitChecker.fromConfiguration, INFO) Using predicate analysis with MathSAT5 version 5.6.10 (9293adc746be) (May 31 2023 12:38:06, gmp 6.2.0, gcc 7.5.0, 64-bit, reentrant). (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:PredicateCPA:PredicateCPA., INFO) Starting analysis 5 ... (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.run, INFO) Assuming external function sqrt to be a pure function. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Ignoring restart configuration '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--recursion.properties' because condition if-recursive did not match. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Ignoring restart configuration '/storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--concurrency.properties' because condition if-concurrent did not match. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:RestartAlgorithm.skipNextAnalysesIfRequired, INFO) Error: line 39: Unsupported feature (arithmetic function): sqrt(n) (line was originally s = sqrt(n);) (ExpressionToFormulaVisitor.visit, SEVERE) Selection Algorithm statistics ------------------------------ Size of preliminary analysis reached set: 0 Used algorithm property: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties Program containing only relevant bools: 0 Relevant boolean vars / relevant vars ratio: 0.0000 Requires alias handling: 0 Requires loop handling: 1 Has a single loop: 1 Requires composite-type handling: 0 Requires array handling: 0 Requires float handling: 0 Requires recursion handling: 0 Relevant addressed vars / relevant vars ratio: 0.0000 Program containing external functions: true Number of all righthand side functions: 7 Restart Algorithm statistics ---------------------------- Number of algorithms provided: 7 Number of algorithms used: 7 Last algorithm used: /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--concurrency.properties Total time for algorithm 7: 0.056s PredicateCPA statistics ----------------------- Number of abstractions: 0 (0% of all post computations) Number of strengthen sat checks: 0 Number of coverage checks: 0 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 0 Avg ABE block size: 0.00 (sum: 0, count: 0, min: 0, max: 0) Number of predicates discovered: 0 Time for post operator: 0.007s Time for path formula creation: 0.007s Time for strengthen operator: 0.001s Time for prec operator: 0.000s Time for coverage checks: 0.000s Total time for SMT solver (w/o itp): 0.000s Total number of created targets for pointer analysis: 0 KeyValue statistics ------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 Invariant Generation statistics ------------------------------- Bounds CPA statistics --------------------- Bound k: 1 Maximum loop iteration reached: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 0.95 (sum: 40, count: 42, min: 0, max: 1) [0 x 2, 1 x 40] Number of states with assumption transitions: 0 CPA algorithm statistics ------------------------ Number of iterations: 41 Max size of waitlist: 2 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.05 (sum: 2, count: 39, min: 0, max: 1) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 39, min: 0, max: 0) LoopIterationSortedWaitlist: 0.05 (sum: 2, count: 39, min: 0, max: 1) CallstackSortedWaitlist: 2.00 (sum: 2, count: 1, min: 2, max: 2) Number of computed successors: 40 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.012s (Max: 0.012s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.003s Time for transfer relation: 0.008s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.014s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPA algorithm statistics ------------------------ Number of iterations: 41 Max size of waitlist: 2 Average size of waitlist: 1 LoopstackSortedWaitlist: 0.05 (sum: 2, count: 39, min: 0, max: 1) ReversePostorderSortedWaitlist: 0.00 (sum: 0, count: 39, min: 0, max: 0) LoopIterationSortedWaitlist: 0.05 (sum: 2, count: 39, min: 0, max: 1) CallstackSortedWaitlist: 2.00 (sum: 2, count: 1, min: 2, max: 2) Number of computed successors: 40 Max successors for one state: 2 Number of times merged: 0 Number of times stopped: 0 Number of times breaked: 0 Total time for CPA algorithm: 0.012s (Max: 0.012s) Time for choose from waitlist: 0.000s Time for precision adjustment: 0.003s Time for transfer relation: 0.008s Time for stop operator: 0.000s Time for adding to reached set: 0.001s BMC algorithm statistics ------------------------ Time for BMC formula creation: 0.014s Total number of computed interpolants: 0 Total number of interpolation calls: 0 Interpolating SMT solver statistics ----------------------------------- CPAchecker general statistics ----------------------------- Number of program locations: 96 Number of CFA edges (per node): 111 (count: 96, min: 0, max: 4, avg: 1.16) Number of relevant variables: 15 Number of functions: 4 Number of loops (and loop nodes): 1 (sum: 39, min: 39, max: 39, avg: 39.00) Size of reached set: 41 Number of reached locations: 36 (38%) Avg states per location: 1 Max states per location: 2 (at node N8) Number of reached functions: 2 (50%) Number of target states: 0 Size of final wait list: 1 Time for analysis setup: 1.195s Time for loading CPAs: 0.377s Time for loading parser: 0.198s Time for CFA construction: 0.597s Time for parsing file(s): 0.267s Time for AST to CFA: 0.170s Time for CFA sanity check: 0.000s Time for post-processing: 0.109s Time for loop structure: 0.005s Time for AST structure: 0.000s Time for function pointers resolving: 0.002s Function calls via function pointers: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer calls: 0 (count: 1, min: 0, max: 0, avg: 0.00) Function calls with function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Instrumented function pointer arguments: 0 (count: 1, min: 0, max: 0, avg: 0.00) Time for classifying variables: 0.076s Time for collecting variables: 0.052s Time for solving dependencies: 0.001s Time for building hierarchy: 0.000s Time for building classification: 0.023s Time for exporting data: 0.000s Time for Analysis: 143.379s CPU time for analysis: 146.890s Total time for CPAchecker: 144.575s Total CPU time for CPAchecker: 149.170s Time for statistics: 0.025s Time for Garbage Collector: 0.104s (in 14 runs) Garbage Collector(s) used: G1 Old Generation, G1 Young Generation Verification result: UNKNOWN, incomplete analysis. Exporting witnesses in Version 2.1 is currently WIP. (Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoopConfig.properties:Analysis /storage/repos/certificate-witnesses-artifact/cpachecker/config/components/svcomp24--singleLoop-IMC.properties:ARGCPA:ARGToYAMLWitnessExport.export, INFO) More details about the verification run can be found in the directory "./output".